Home / 419,534.88-578,939.37-245,121.18

Finding the Fourth Proportional to 419,534.88, 578,939.37 and 245,121.18

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Solution

The fourth proportional to 419,534.88, 578,939.37 and 245,121.18 is: 338,256.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,534.88 : 578,939.37 = 245,121.18 : x
  2. Step 2: Convert to fraction form
    419,534.88/578,939.37 = 245,121.18/x
  3. Step 3: Cross multiply
    419,534.88x = 578,939.37 × 245,121.18
  4. Step 4: Simplify right side
    419,534.88x = 141,910,301,522.86
  5. Step 5: Solve for x
    x = 141,910,301,522.86/419,534.88
  6. Step 6: Final answer
    x = 338,256.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.